It's really stuck...
I have a shimano square taper bb in a mid '90s rockhopper that has never been serviced. My fault, I know. I'm trying to remove the bb to put the crankset on another bike. The left side cup came out with little problem. The drive side cup is being stubborn, however. I've tried everything to loosen the cup. My last effort, using Liquid Wrench, locking the bb tool in a vise, and using the entire frame for leverage still won't work. The damn thing won't budge. And yes I'm aware that the drive side cup is lefthand threaded. I don't want to damage the bb tool or any part of the bb or bike. You guys have any clever ideas? Is this a job for the LBS? Thanks in advance.